Fox River at McHenry (Stratton Lock and Dam) Tailwater, IL

MCHENRY COUNTY, IL42.3092°N, -88.2514°W Updated 17 hr ago

FLOW RATE

2,311cfs

GAUGE HT

3.21ft

Flow Rate Historical Avg

MEDIAN FLOW RATE · 30 DAY

2,311cfs

Optimal band: 633–857 cfs

PERIOD HIGH

2,311cfs

PERIOD LOW

461cfs

RUNNABLE

65%

last 30 day in band

Gauge Height

3.21ft

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42.3092, -88.2514

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DATA · NOAA NWPS · NOAA · NWSUPDATED 2026-09-21 00:00 UTC

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